Вопрос № 857172 - Английский язык

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There are many different types of lasers. 1_______. The first type of laser was called a ruby laser.2_______. Other lasing mediums can be selected based on the desired emission wavelength, power needed and pulse duration. 3_______. The reason that CO2 laser is so dangerous is because it emits laser light in the infrared and microwave region of the spectrum. 4_______.

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1_______. Huge reinforced concrete units manufactured in heated factory premises are brought to the site which becomes something like an assembly shop. 2_______. First of all it cuts the labour needed for building by 60 to 70% and extends the building season what is very important for countries where winter lasts for many months. 3_______. All this makes the building process less expensive and much less labourous.
4_______.

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Millions of cans of drinks are drunk every day in the USA. 1_______. This is good news for the big drinks manufacturers, but there is one problem: what happens to all the empty cans afterwards? A German engineering company thinks it has the answer.
2_______. It is different from American vending machines because it also takes back empty cans. Why bring an empty can back? 3_______. If you are lucky, you win a new full can. 4_______. However, they need to do some market research. They need to collect all the statistics that they can find about the American drinks market.

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Big companies spend millions of dollars on developing their brand and designing their logo. Market research shows that more and more people are paying attention to the brand of the things they buy. Why? Because global brands like Pepsi have ideas and values connected with them.
Some people are very loyal to one brand because of the ideas and values associated with it. For example, some makes of car are associated with quality or reliability.
Other people are buying an image of themselves – the brand you use says what kind of person you are. Drinking Pepsi Max means you want to get the most from life – you want freedom and adventure, and therefore you are an exciting person. Wearing Nike trainers or sports clothes is all about individual achievement; you can do anything you want – just do it.
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Some makes of car are associated with …

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For many years, sales of cigarettes in western countries have been falling, because people know more about the dangers of smoking. Because of this, one large tobacco company has increased its marketing activities in Asia and Latin America. In these parts of the world, people know less about the danger to their health from smoking. At the moment, about 150,000 people a year in Latin America die from smoking-related illness. This number is going up every year. The tobacco company knows this, but it continues to sell more and more cigarettes in these countries. The pressure group ASH (Action on Smoking and Health) says tobacco companies use the fact that people don’t understand the dangers. They believe this is unethical as it puts profits before people.
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For many years, sales of cigarettes in western countries have been falling, because people know more about the dangers of …

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Each year, farmers in Africa and Asia sell most of their crops (e.g. rice, corn), but save a small amount to grow the next year. Now, a US company has developed a new plant gene called the Terminator. If a plant has this gene, it produces seeds which won’t grow again after the first year. This means the farmers must buy new seeds every year. This is good for the company’s profits. But pressure groups like Greenpeace say this is irresponsible. They say that it kills the natural plants and means farmers have to get their seeds from the company. If farmers can’t afford to buy the company’s seeds, they will have no crops to grow. The result could be that people die from hunger.
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The buying of new seeds every year is good for …